公开(公告)号：US20180190238A1

公开(公告)日：2018-07-05

申请号：US15856900

申请日：2017-12-28

Applicant: LG Display Co., Ltd.

Inventor： Dong-Won PARK ,  Jang-Hwan KIM ,  Jong-Min PARK ,  Joon- Hee LEE ,  Yong-Chul KWON

IPC: G09G5/00 ,  G09G3/20

CPC classification number: G09G5/008 ,  G09G3/2092 ,  G09G3/2096 ,  G09G3/3685 ,  G09G2310/0243 ,  G09G2310/0297 ,  G09G2330/021 ,  G09G2330/06 ,  G09G2370/045 ,  G09G2370/08 ,  G09G2370/10

Abstract: The present disclosure relates to a display interface device which can increase display information transmission efficiency and reduce power consumption and EMI, in which a transmission part transmits clock edge information included in a data packet of each channel at a different timing from clock edge information included in data packets of other channels. A reception part detects a clock edge of each channel from the data packet transmitted through each channel, generates an internal clock signal of each channel, synchronized with the detected clock edge, corrects a delay of each channel depending on a result of a logical operation performed on a delayed clock edge of a channel and a clock edge of another channel to further generate an internal clock signal of each channel, and restores the display information from the data packet of each channel using the internal clock signal of each channel.

公开(公告)号：US20180190196A1

公开(公告)日：2018-07-05

申请号：US15815687

申请日：2017-11-16

Applicant: LG Display Co., Ltd.

Inventor： Yong-Chul KWON ,  Jang-Hwan KIM ,  Dong-Won PARK ,  Jong-Min PARK ,  Joon-Hee LEE

IPC: G09G3/3241 ,  H01L27/32

CPC classification number: G09G3/3241 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/0283 ,  G09G2310/08 ,  G09G2320/0295 ,  G09G2320/043 ,  H01L27/3206 ,  H01L27/3211 ,  H01L27/3244

Abstract: An OLED display device capable of preventing luminance deviation caused by a voltage drop of an EVDD is disclosed. The OLED display device generates a reference voltage, a voltage level of which varies with distance from the data driver and supplies the reference voltage to the display panel through the data driver.

公开(公告)号：US20180190192A1

公开(公告)日：2018-07-05

申请号：US15787670

申请日：2017-10-18

Applicant: LG Display Co., Ltd.

Inventor： Yong-Chul KWON ,  Jang-Hwan KIM ,  Dong-Won PARK ,  Jong-Min PARK ,  Joon-Hee LEE

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0861 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0693 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2330/08

Abstract: An OLED display device capable of simplifying the configuration of an external compensation circuit and reducing a compensation time is disclosed. The OLED display device includes a display panel including a pixel, a feedback compensator circuit connected to the pixel through a data line and a sensing line of the display panel, the feedback compensator circuit including an error amplifier configured to receive, through a feedback line, a feedback current flowing into the sensing line and a feedback voltage generated by a sensing resistor, from the pixel during a scan period, compare a data input voltage with the feedback voltage to adjust a data output voltage supplied to the pixel through the data line, and set a target current for driving an OLED element in the pixel, and a precharger configured to precharge the feedback compensator circuit at a front part of the scan period.